What is the value of speaking directly with people you have issues with versus venting to support groups (spouse, close friends, etc)?

How can the church play an active role in working through conflict in a way that builds community? Is this something the church has succeeded in the past? Does the church offer advantages in dealing with conflict versus any other kind of community?

If you are unable to fix a conflict in your life, how would you envision applying the "treat them as a Gentile or tax collector" imperative? What would that look like?